Typically an IQP comes from HVAC, electrical, fire, plumbing, door industry, or lift installation background. These are the technical qualifications required to do the physical testing.
An IQP ensures that the maintenance of a particular specified system has been done or actually does it themselves. They are a single person or a team to service a larger site or system.
Trade training schools provide those direct qualifications. You may like to contact these organisations for the base qualifications in a particular field.
We provide top up refreshers once you are qualified.